<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body {
				background-color: #333;
			}
			.map {
				position: relative;
				width: 747px;
				height: 616px;
				background: url(image/map.png) no-repeat;
				margin: 0 auto;
			}
			
			.city {
				position: absolute;
				top: 221px;
				right: 196px;
				color:#fff;
			}
			.tb {
				top: 500px;
				right: 80px;
			}
			.dotted {
				width: 8px;
				height: 8px;
				background-color: #09f;
				border-radius: 50%;
			}
			.city div[class^="pulse"] {
				/* 保证我们小波纹在父盒子里面水平垂直居中放大就会中心向四周发散 */
				position: absolute;
				top: 50%;
				left: 50%;
				transform: translate(-50%,-50%);
				width: 8px;
				height: 8px;
				box-shadow: 0 0 12px #009dfd;
				border-radius: 50%;
				animation: pulse 1.2s linear infinite;
			}
			
			.city div.pulse2 {
				animation-delay: 0.4s;
			}
			
			.city div.pulse3 {
				animation-delay: 0.8s;
			}
			
			@keyframes pulse{
				0%{}
				70%{
					/* transform:scale(5); 我们不要用scale因为他会让阴影变大*/
					width: 40px;
					height: 40px;
					opacity: 1;
				}
				100% {
					width: 70px;
					height: 70px;
					opacity: 0;
				}
			}
		</style>
	</head>
	<body>
		<div class="map">
			<div class="city">
				<div class="dotted"></div>
				<div class="pulse1"></div>
				<div class="pulse2"></div>
				<div class="pulse3"></div>
			</div>
			<div class="city tb">
				<div class="dotted"></div>
				<div class="pulse1"></div>
				<div class="pulse2"></div>
				<div class="pulse3"></div>
			</div>
		</div>
	</body>
</html>